Here's the eShop demo.
I played about 2 hours of the demo last night, which was only enough for 1 battle and a bunch of cutscenes, but I was definitely more impressed by this than the debut demo for Octopath Traveler. It's very much in the Tactics Ogre lineage of Square Enix TRPGs, and it doesn't seem like they're gonna add the job system complexity of Final Fantasy Tactics, which has some merit for not bogging the game down into too much systems complexity.